AssemblyBefore carrying out any work on the power tool (e.g. maintenance, tool change etc.), remove the battery from the power tool. There is risk of injury from unintentionally pressing the on/off switch.Auxiliary handleSelecting drill chucks and toolsChanging the drill chuck Changing the ToolDust/Chip ExtractionDust Extraction with GDE 28 D or GDE 18V-26 D (Accessory)